const fs = require('fs');
fs.mkdirSync('./4-1', {
    recursive: true
});
// let a = name;
// fs.mkdirSync('./4-2' + a, {
//     recursive: true
// });
fs.mkdirSync('./4-3', {
    recursive: true
}, function (err) {
    if (err) {
        console.log(err);
    }
    console.log(完成);
});

const stat = fs.statSync('./3-1.html');
console.log(stat);

console.log(fs.existsSync('./11.html'));